-- requiring vaccinations. as a health-care worker, i used to work in hospitals. i will leave the hospital that it was required, because i have learned so much about what is in vaccinations and how little they protect people. i would hope c-span would have someone on like researchers who have done a lot of studies on vaccinations and their adverse effects and to provide an opposite view. host: margaret, that's why we are talking to all of you, because we are trying to get different viewpoints from people across the country. what is in these vaccinations? caller: i have some information here about what is in vaccines. for instance, the influenza virus vaccination, types a and b are produced using formaldehyde, paula sorbates 80, paula phosphates -- polysorbate 80, polyphosphates, and monkey parts and aborted fetus tissue. crossing monkey kidney cells or chicken cells, we are crossing species. host: where did you get this information? caller: this one came from the internet. there was a web site materodoc.com. also, a lot of information i got is from neilzmill z. miller, his book called "vac